Tapered Roller Bearing Assembly Bearing Industry Number 30209 Bore Diameter 45 mm Bore Type Cylindrical Cage Material Pressed Steel Cone Width 19 mm Cup Width 16 mm Flange Diameter Not Applicable Flange Type Non-Flanged Lubricant Material Not Applicable Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 85 mm Overall Width 20.75 mm Ring Material Carbon Steel Roller Material Carbon Steel System of Measurement Metric